View Separate Worksheets at Once in Excel
This feature allows you to view multiple worksheets from the same workbook at the same time.
Go to the View tab and click New Window
Then click Arrange All
Select either Horizontal or Vertical and put a check next to Windows of active workbook and then click OK.
You will now have two separate views of the same workbook.
You can view different worksheets in each pane or the same worksheets, it doesn't matter.
Each side is independently controlled. This allows you to avoid flipping between the tabs to compare information.
When you are finished with this view, just close one of the windows and maximize the other one so it fills the Excel window.
This technique will save you a ton of time!
Download the file for this tutorial to try this out with the sample data above.